Closing device in particular for dyeing spindles

ABSTRACT

A closing sleeve, in particular for dyeing spindles, which comprises a dyeing spindle having a plurality of threads. A resiliently supported pressure plate is provided and additional threads engage the threads of the spindle. The additional threads include a first spring-biased thread jaw which engages resiliently the spindle and a second spring-biased thread jaw is disposed opposite the first thread jaw in thread engaging position. A single release handle controlls both thread jaws into the disengaging position.

Unlted stateS Patent 1 1111 3,777,516 Tigges 51 Dec. 11, 1973 [54] CLOSING DEVICE IN PARTICULAR FOR 3,512,731 5/1970 Kitamura 242/1302 DYEING SPINDLES FOREIGN PATENTS OR APPLICATIONS [75] Inventor: Gerhard Tigges, 649 59 H 1962 l I 8 8 wuppertaLCmnenberg Germany ta y 6 I19 Assigneei Firm! Lebl'echt Tiggel' Primary Examiner-Billy .l. Wilhite wuppertahcmnenberg Germany Assistant Examiner-Philip R. Coe 22 Filed: p 10 1972 Attorney-Ernest G. Montague [21] Appl. No.: 242,713

[57] ABSTRACT [30] Foreign Application Priorit D t A closing sleeve, in particular for dyeing spindles, Apr. 10 1971 Germany P 21 17 526.8 which comprises a dyeing Spindle having a plurality of threads. A resiliently supported pressure plate is pro 521 US. (:1. 68/198 242/1301 vided and addhhmal threads engage the threads [51] Int. Cl i365l1 49/20 spindie' The additional threads include a first Spring [58] Field 61 Search 68/189 198 212- biased threadiaw which engages resiliently the Spindle 242/129] and a second spring-biased thread jaw is disposed opposite the first thread jaw in thread engaging position. [56] References Cited A single release handle controlls both thread jaws into UNITED STATES PATENTS the disengagmg position. 3,481,165 12/1969 Tigges 68/198 8 Claims, 4 Drawing Figures PATENTEU 1 I975 v 3.777. 516

SHiEI 1 (IF 3 CLOSING DEVICE IN PARTICULAR FOR DYEING SPINDLES The present invention relates to a closing sleeve, in

i particular for dyeing spindles with a spring supported pressure plate and with threads provided on the spindle.

It is one object of the present invention, to provide a closing sleeve in particular for dyeing spindles, wherein combined with a simplified structure as to production, and equally easy handling, a more stable thread engagement position between the closing sleeve and the spindle can be obtained.

It is another object of the present invention to provide a closing sleeve, in particular for dyeing spindles, wherein a spring-biased thread jaw in thread engaging position is arranged opposite another spring-biased thread jaw, and both thread jaws are controllable by operation of a single release handle into the free position.

An advantageous formation resides, in accordance with the present invention, in an arrangement according to which the two thread jaws extend into the gap between two connected bushings interspersed by the spindle, and arranged coaxially relative to each other, relative to which bushings the closing housing containing the bearing axes of the thread jaws is displaceable by operation of the release handle.

It is of advantage thereby, to provide a pressure spring surrounding the upper bushing, which pressure spring supports itself, on the one hand, on the housing cover and, on the other hand, on the jaws.

An advantageous structural formation results by an angular guide ring body in cross-section for the pressure spring.

Futhermore, in accordance with the present invention, it is advantageous, that the upper bushing carries a swinging axis of the release handle supporting itself on the cover of the housing, which handle is formed as a swinging lever operating like a toggle.

Beyond that, it is favorable in accordance with the present invention, that the lower bushing has at its upper end edge a collar engaging the bottom side of the jaws.

Also in accordance with the present invention, an advantageous structure resides in an arrangement that the two bushings are connected by two diametrically oppositely arranged stays.

Finally, it is also advantageous, in accordance with the present invention, that the upper bushing carrier carries at its upper ouside disposed edge a plate, which engages in jaw engagement position the upper edge of the swinging lever.

Due to such formation, a closing sleeve of this type, with improved and thus more stable thread engaging position between the dyeing spindle and the closing sleeve with equally simple handling, is obtained.

Both thread jaws enter thereby, biased by only a single spring, in forced engagement with the thread of the dyeing spindle and are controlled always synchronously by operation of the release handle into the free position. It results, furthermore, by this formation the advantage of a simple construction of the closing sleeve concerning its manufacture. As transmission element between the release handle and the thread jaws merely two bushings are provided, connected to each other and disposed coaxially relative to each other, as well as dispersed by the spindle. In the gap between the bushings, extend the jaws for obtaining a forced engagement, so that in a release operation of the handle reliably a joinder of the jaws by means ofa swinging handle takes place. The release can be performed with little exertion of force. At first by the release handle a displacement of the closing housing with following displacement of the bushings takes place, whereby always only one pressure spring is to be compressed, namely the one disposed between the closing housing and the pressure plate and the pressure spring biasing the jaws. The pressure spring surrounds for the purpose of a space saving arrangement and disurbance-free function the upper bushing and supports itself preferably at the jaws overthe guide ring body. For the coupling of the bushings with the release handle extends the upper bushing beyond the housing cover and carries with this projecting range the swinging axis for the release handle. If the latter is operated, the displacement of the thread jaws takes place forcibly over the upper and the lower bushing by means of a collar moving towards the bottom side of the jaws. It is possible to form the bushings as one single part and to obtain the gap by a free cut. It has been found, however, as advantageous, to connect the bushings for simplified production and material saving by two diametrically oppositely disposed stays. The outside disposed edge of the upper bushing permits in the jaw engagement position the operation of the release handle only into the free position.

With these and other objects in view, which will become apparent in the following detailed description, the present invention, which is shown by example only, will be clearly understood in connection with the accompanying drawings, in which:

FIG. I is a front elevation of a closing sleeve mounted on a dyeing spindle; FIG. 2 is a side elevation of the showing in FIG. 1;

FIG. 3 is a longitudinal section of the closing sleeve along the lines III-III of FIG. 2; and

FIG. 4 is the same section as in FIG. 3, however, the thread jaws being shown out of engagement.

Referring now to the drawings, the closing sleeve 1 has a pressure plate 3 supported by a helical spring 2. The closing sleeve 1 surrounds a dyeing spindle 4 and forms an opening 5, which is widened at the upper end to a housing 6 of the shape of a hub and extending in crosswise direction, whereby the cover 7 of the housing 6 has an opening 8' which is flush with the opening 5. The dyeing spindle 4 carries at its free end a screw thread 9 and a pin-shaped insertion section 10. During mounting of the closure sleeve 1, two oppositely disposed thread jaws Ill and 12 move against the thread 9.

The mounting of the thread jaws II and I2 takes place about below the cross axes I4 and I4 of the housing 6 disposed below the threads II and 12.

Seen in cross-section, the jaws 11 and 12 are of U- shape and rigidly connected with. the cross axes 14 and 14 with the arms 51. The U-stays of the jaws 11 and 12 surround a favorable thread section of the spindle 4.

These thread jaws 11 and 12 extend into the slit 54 between two bushings 55 and 56, which are connected together, disposed coaxially relative to each other and passed through by the spindle 4. By two diametrially oppositely disposed stays 57 are connected the bushings 55 and 56. The lower bushing 56 guides itself in the sleeve 1 and has at its upper end edge a collar 56 moving towards the bottom side 11" and 12" of the jaws 11 and 12.

The jaws 11 and 12 are biased by a pressure spring 58. The latter surrounds the upper bushing 55 and supports itself, on the one hand, on the housing cover 7 and, on the other hand, on the jaws 11 and 12 as intermediate arrangement of a guide ring body 58' which is angular in cross-section.

The upper bushing 55 passes through the opening 8 of the housing cover 7'. On the upper outside disposed edge carries the upper bushing 55 a plate 59 from which extends two upwardly directed arms 59' and 59". In these arms 59' and 59 sits a swinging axle 60 each for the release handle 61 supporting itself on the cover 7' of the housing 7 with its upwardly directed arms 61 and 61", which release handle 61 is designed as 'a toggle-like swinging lever. The release handle 61 continues into the slightly upwardly bent operation end 6111!.

In order to make possible the operation of the release handle 61 in jaw engagement position in one direction only, the plate 59 engages the upper edge 61"" of the swinging lever 61 which is freely cut on the upper side for a part passage of the plate.

For a continuous release movement, the arms 61 and 61" of the release lever 61 form curves S.

If the closing sleeve is mounted on the dyeing spindle 4, the jaws 11 and 12 are swung into the open position against the biasing of the pressure spring 58 and retained by the latter thereafter in engaging position.

For the purpose of release of the thread engagement position, the handle 61 is swung in the direction of the arrow X. By this arrangement, a displacement of the housing 6 takes place at first by means of the curves S of the release handle 61 against the helical spring 2 and thereafter a longitudinal displacement of the bushings 55 and 56 against the force of the pressure spring 58. The jaws l1 and 12 are then swung by means of the annular collar 56 of the lower bushing 56 completely into the open position, shown in FIG. 4, so that the closing sleeve can easily be removed from the dyeing spindle 4.

While I have disclosed one embodiment of the present invention, it is to be understood, that this embodiment is given by example only and not in a limiting sense.

I claim:

1. A closing sleeve, in particular for dyeing spindles, comprising a dyeing spindle, having a plurality of threads,

a resiliently supported pressure plate,

additional thread means engaging said threads of said spindle,

said additional thread means including a first springbiased thread jaw resiliently engaging said spindle and a second spring-biased thread jaw, disposed opposite said first thread jaw in thread engaging position, and

a single release handle controlling both said thread jaws into the disengaging position.

2. The closing sleeve, as set forth in claim 1, which includes two bushings connected together in superposed position, disposed coaxially relative to each other, and passed through by said spindle, to constitute an upper and a lower bushing,

said two bushings defining a split therebetween,

said thread jaws extending into said split,

a closing housing receiving bearing axles of said thread jaws, and including a housing cover, and said closing housing is displaceable by operation of said release handle. 3. The closing sleeve, as set forth in claim 2, which includes a pressure spring surrounding said upper bushing,

and said pressure spring supporting itself at one end on said housing cover and at the other end on said jaws. 4. The closing sleeve, as set forth in claim 3, which includes a guide ring body of angular shape in cross-section for said pressure spring. 5. The closing sleeve, as set forth in claim 2, which includes a swinging axle for said release lever supporting itself on said cover of said closing housing, said upper bushing carries said swinging axle, and the latter is formed as a swinging lever operating as a toggle. 6. The closing sleeve, as set forth in claim 5, wherein said upper bushing has an upper outside disposed edge, a plate carried by said upper bushing on the upper outside disposed edge of the latter, said swinging lever has an upper edge, and said plate engages in the jaw engaging position said upper edge of said swinging lever. 7. The closing sleeve, as set forth in claim 2, wherein said jaws have a bottom side, and said lower bushing has at its upper end edge a collar moving towards said bottom side of said jaws. 8. The closing sleeve, as set forth in claim 2, which includes two diametrically oppositely disposed stays for connection of said two bushings.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,777,516) Dated- December 11, 1973 Inventor(s) Gerhard Tigges It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

On the coversheet item[73 should read as follows:

-- Assignee: Firms. Leorecht Tigges .G. l-fuppertal- Cronenberg, Germany Signed and sealed this 30th day of April 1971;.

(SEAL) Attest: V

jam-mm MJ LETOHER R. e c. IVIARSHALL DAME Abtesting Officer r commissioner of Pat ents 

1. A closing sleeve, in particular for dyeing spindles, comprising a dyeing spindle, having a plurality of threads, a resiliently supported pressure plate, additional thread means engaging said threads of said spindle, said additional thread means including a first spring-biased thread jaw resiliently engaging said spindle and a second spring-biased thread jaw, disposed opposite said first thread jaw in thread engaging position, and a single release handle controlling both said thread jaws into the disengaging position.
 2. The closing sleeve, as set forth in claim 1, which includes two bushings connected together in superposed position, disposed coaxially relative to each other, and passed through by said spindle, to constitute an upper and a lower bushing, said two bushings defining a split therebetween, said thread jaws extending into said split, a closing housing receiving bearing axles of said thread jaws, and including a housing cover, and said closing housing is displaceable by operation of said release handle.
 3. The closing sleeve, as set forth in claim 2, which includes a pressure spring surrounding said upper bushing, and said pressure spring supporting itself at one end on said housing cover and at the other end on said jaws.
 4. The closing sleeve, as set forth in claim 3, which includes a guide ring body of angular shape in cross-section for said pressure spring.
 5. The closing sleeve, as set forth in claim 2, which includes a swinging axle for said release lever supporting itself on said cover of said closing housing, said upper bushing carries said swinging axle, and the latter is formed as a swinging lever operating as a toggle.
 6. The closing sleeve, as set forth in claim 5, wherein said upper bushing has an upper outside disposed edge, a plate carried by Said upper bushing on the upper outside disposed edge of the latter, said swinging lever has an upper edge, and said plate engages in the jaw engaging position said upper edge of said swinging lever.
 7. The closing sleeve, as set forth in claim 2, wherein said jaws have a bottom side, and said lower bushing has at its upper end edge a collar moving towards said bottom side of said jaws.
 8. The closing sleeve, as set forth in claim 2, which includes two diametrically oppositely disposed stays for connection of said two bushings. 